i810/intel, SDVO, and "fuzzy" modes

Alex Deucher alexdeucher at gmail.com
Thu Oct 19 22:32:38 PDT 2006


On 10/20/06, Jeffrey W. Baker <jwbaker at acm.org> wrote:
> On the same topic, I'd love to just work on this stuff myself, but a
> casual spin around intel.com did not turn up register-level
> documentation for the G965.  Ditto for intellinuxgraphics.org.  Anybody
> have a link?

there are no public register specs at the moment.  Use the source Luke!

Alex

>
> On Thu, 2006-10-19 at 20:25 -0700, Jeffrey W. Baker wrote:
> > Can someone on the Intel team comment on why the SDVO cards generate
> > "fuzzy" modes.  Thanks to other members of this list I finally have a
> > working 1920x1200 digital mode on my G965, and it's amazingly bad.  At
> > 1600x1200 analog the picture is perfectly crisp.  But at either
> > 1600x1200 or 1920x1200 digital, it's appalling.  There's no way this is
> > working correctly.  Somewhere along the line, some piece of hardware is
> > resampling the picture.
> >
> > I know it's hard to tell from a photograph, but this one is high
> > resolution and you can see the individual grid lines on my monitor.
> > Note how what are supposed to be 1px sharp lines take up 2px.
> >
> > http://tastic.brillig.org/~jwb/fuzzy.png
> > http://tastic.brillig.org/~jwb/clear.png
> >
> > By the way, the monitor reports 1920x1200 74.2kHz/60Hz.
> >
> > Any hints?  This whole SDVO thing is really quite mysterious to us mere
> > users.
> >
> > -jwb
> >
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> >
>
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